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July 28, 2009
Tutorial - Laser Tape Measure Hacking
about 3 years ago
Some research identifies the processor 38326A54WV as perhaps being made by Renesas - HD64338326XXXWV.
may have been replaced by 38327 - http://documentation.renesas.com/eng/products/mpumcu/rej09b0144_h83827r.pdf
Pin 10 is listed as timer output, but given the orientation of the chip (pin 1 at beveled corner 1-10 along bottom) I think your pin 10 is actually 71 and 70 is RXD. Pin 69 is SCK. You may need to clock data in. Pin 72 is an IRQ, perhaps chip requires an interrupt to read?
There is another io port on the other side, pins 21-23.
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about 4 years ago
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